cregit-Linux how code gets into the kernel

Release 4.11 drivers/scsi/scsi_devinfo.c

Directory: drivers/scsi
#include <linux/blkdev.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/slab.h>

#include <scsi/scsi_device.h>
#include <scsi/scsi_devinfo.h>

#include "scsi_priv.h"


/*
 * scsi_dev_info_list: structure to hold black/white listed devices.
 */

struct scsi_dev_info_list {
	
struct list_head dev_info_list;
	
char vendor[8];
	
char model[16];
	
unsigned flags;
	
unsigned compatible; /* for use with scsi_static_device_list entries */
};


struct scsi_dev_info_list_table {
	
struct list_head node;	/* our node for being on the master list */
	
struct list_head scsi_dev_info_list; /* head of dev info list */
	
const char *name;	/* name of list for /proc (NULL for global) */
	
int key;		/* unique numeric identifier */
};



static const char spaces[] = "                "; 
/* 16 of them */

static unsigned scsi_default_dev_flags;
static LIST_HEAD(scsi_dev_info_list);

static char scsi_dev_flags[256];

/*
 * scsi_static_device_list: deprecated list of devices that require
 * settings that differ from the default, includes black-listed (broken)
 * devices. The entries here are added to the tail of scsi_dev_info_list
 * via scsi_dev_info_list_init.
 *
 * Do not add to this list, use the command line or proc interface to add
 * to the scsi_dev_info_list. This table will eventually go away.
 */
static struct {
	
char *vendor;
	
char *model;
	
char *revision;	/* revision known to be bad, unused */
	
unsigned flags;
} 
scsi_static_device_list[] __initdata = {
	/*
         * The following devices are known not to tolerate a lun != 0 scan
         * for one reason or another. Some will respond to all luns,
         * others will lock up.
         */
	{"Aashima", "IMAGERY 2400SP", "1.03", BLIST_NOLUN},	/* locks up */
	{"CHINON", "CD-ROM CDS-431", "H42", BLIST_NOLUN},	/* locks up */
	{"CHINON", "CD-ROM CDS-535", "Q14", BLIST_NOLUN},	/* locks up */
	{"DENON", "DRD-25X", "V", BLIST_NOLUN},			/* locks up */
	{"HITACHI", "DK312C", "CM81", BLIST_NOLUN},	/* responds to all lun */
	{"HITACHI", "DK314C", "CR21", BLIST_NOLUN},	/* responds to all lun */
	{"IBM", "2104-DU3", NULL, BLIST_NOLUN},		/* locks up */
	{"IBM", "2104-TU3", NULL, BLIST_NOLUN},		/* locks up */
	{"IMS", "CDD521/10", "2.06", BLIST_NOLUN},	/* locks up */
	{"MAXTOR", "XT-3280", "PR02", BLIST_NOLUN},	/* locks up */
	{"MAXTOR", "XT-4380S", "B3C", BLIST_NOLUN},	/* locks up */
	{"MAXTOR", "MXT-1240S", "I1.2", BLIST_NOLUN},	/* locks up */
	{"MAXTOR", "XT-4170S", "B5A", BLIST_NOLUN},	/* locks up */
	{"MAXTOR", "XT-8760S", "B7B", BLIST_NOLUN},	/* locks up */
	{"MEDIAVIS", "RENO CD-ROMX2A", "2.03", BLIST_NOLUN},	/* responds to all lun */
	{"MICROTEK", "ScanMakerIII", "2.30", BLIST_NOLUN},	/* responds to all lun */
	{"NEC", "CD-ROM DRIVE:841", "1.0", BLIST_NOLUN},/* locks up */
	{"PHILIPS", "PCA80SC", "V4-2", BLIST_NOLUN},	/* responds to all lun */
	{"RODIME", "RO3000S", "2.33", BLIST_NOLUN},	/* locks up */
	{"SUN", "SENA", NULL, BLIST_NOLUN},		/* responds to all luns */
	/*
         * The following causes a failed REQUEST SENSE on lun 1 for
         * aha152x controller, which causes SCSI code to reset bus.
         */
	{"SANYO", "CRD-250S", "1.20", BLIST_NOLUN},
	/*
         * The following causes a failed REQUEST SENSE on lun 1 for
         * aha152x controller, which causes SCSI code to reset bus.
         */
	{"SEAGATE", "ST157N", "\004|j", BLIST_NOLUN},
	{"SEAGATE", "ST296", "921", BLIST_NOLUN},	/* responds to all lun */
	{"SEAGATE", "ST1581", "6538", BLIST_NOLUN},	/* responds to all lun */
	{"SONY", "CD-ROM CDU-541", "4.3d", BLIST_NOLUN},
	{"SONY", "CD-ROM CDU-55S", "1.0i", BLIST_NOLUN},
	{"SONY", "CD-ROM CDU-561", "1.7x", BLIST_NOLUN},
	{"SONY", "CD-ROM CDU-8012", NULL, BLIST_NOLUN},
	{"SONY", "SDT-5000", "3.17", BLIST_SELECT_NO_ATN},
	{"TANDBERG", "TDC 3600", "U07", BLIST_NOLUN},	/* locks up */
	{"TEAC", "CD-R55S", "1.0H", BLIST_NOLUN},	/* locks up */
	/*
         * The following causes a failed REQUEST SENSE on lun 1 for
         * seagate controller, which causes SCSI code to reset bus.
         */
	{"TEAC", "CD-ROM", "1.06", BLIST_NOLUN},
	{"TEAC", "MT-2ST/45S2-27", "RV M", BLIST_NOLUN},	/* responds to all lun */
	/*
         * The following causes a failed REQUEST SENSE on lun 1 for
         * seagate controller, which causes SCSI code to reset bus.
         */
	{"HP", "C1750A", "3226", BLIST_NOLUN},		/* scanjet iic */
	{"HP", "C1790A", "", BLIST_NOLUN},		/* scanjet iip */
	{"HP", "C2500A", "", BLIST_NOLUN},		/* scanjet iicx */
	{"MEDIAVIS", "CDR-H93MV", "1.31", BLIST_NOLUN},	/* locks up */
	{"MICROTEK", "ScanMaker II", "5.61", BLIST_NOLUN},	/* responds to all lun */
	{"MITSUMI", "CD-R CR-2201CS", "6119", BLIST_NOLUN},	/* locks up */
	{"NEC", "D3856", "0009", BLIST_NOLUN},
	{"QUANTUM", "LPS525S", "3110", BLIST_NOLUN},	/* locks up */
	{"QUANTUM", "PD1225S", "3110", BLIST_NOLUN},	/* locks up */
	{"QUANTUM", "FIREBALL ST4.3S", "0F0C", BLIST_NOLUN},	/* locks up */
	{"RELISYS", "Scorpio", NULL, BLIST_NOLUN},	/* responds to all lun */
	{"SANKYO", "CP525", "6.64", BLIST_NOLUN},	/* causes failed REQ SENSE, extra reset */
	{"TEXEL", "CD-ROM", "1.06", BLIST_NOLUN},
	{"transtec", "T5008", "0001", BLIST_NOREPORTLUN },
	{"YAMAHA", "CDR100", "1.00", BLIST_NOLUN},	/* locks up */
	{"YAMAHA", "CDR102", "1.00", BLIST_NOLUN},	/* locks up */
	{"YAMAHA", "CRW8424S", "1.0", BLIST_NOLUN},	/* locks up */
	{"YAMAHA", "CRW6416S", "1.0c", BLIST_NOLUN},	/* locks up */
	{"", "Scanner", "1.80", BLIST_NOLUN},	/* responds to all lun */

	/*
         * Other types of devices that have special flags.
         * Note that all USB devices should have the BLIST_INQUIRY_36 flag.
         */
	{"3PARdata", "VV", NULL, BLIST_REPORTLUN2},
	{"ADAPTEC", "AACRAID", NULL, BLIST_FORCELUN},
	{"ADAPTEC", "Adaptec 5400S", NULL, BLIST_FORCELUN},
	{"AFT PRO", "-IX CF", "0.0>", BLIST_FORCELUN},
	{"BELKIN", "USB 2 HS-CF", "1.95",  BLIST_FORCELUN | BLIST_INQUIRY_36},
	{"BROWNIE", "1200U3P", NULL, BLIST_NOREPORTLUN},
	{"BROWNIE", "1600U3P", NULL, BLIST_NOREPORTLUN},
	{"CANON", "IPUBJD", NULL, BLIST_SPARSELUN},
	{"CBOX3", "USB Storage-SMC", "300A", BLIST_FORCELUN | BLIST_INQUIRY_36},
	{"CMD", "CRA-7280", NULL, BLIST_SPARSELUN},	/* CMD RAID Controller */
	{"CNSI", "G7324", NULL, BLIST_SPARSELUN},	/* Chaparral G7324 RAID */
	{"CNSi", "G8324", NULL, BLIST_SPARSELUN},	/* Chaparral G8324 RAID */
	{"COMPAQ", "ARRAY CONTROLLER", NULL, BLIST_SPARSELUN | BLIST_LARGELUN |
		BLIST_MAX_512 | BLIST_REPORTLUN2},	/* Compaq RA4x00 */
	{"COMPAQ", "LOGICAL VOLUME", NULL, BLIST_FORCELUN | BLIST_MAX_512}, /* Compaq RA4x00 */
	{"COMPAQ", "CR3500", NULL, BLIST_FORCELUN},
	{"COMPAQ", "MSA1000", NULL, BLIST_SPARSELUN | BLIST_NOSTARTONADD},
	{"COMPAQ", "MSA1000 VOLUME", NULL, BLIST_SPARSELUN | BLIST_NOSTARTONADD},
	{"COMPAQ", "HSV110", NULL, BLIST_REPORTLUN2 | BLIST_NOSTARTONADD},
	{"DDN", "SAN DataDirector", "*", BLIST_SPARSELUN},
	{"DEC", "HSG80", NULL, BLIST_REPORTLUN2 | BLIST_NOSTARTONADD},
	{"DELL", "PV660F", NULL, BLIST_SPARSELUN},
	{"DELL", "PV660F   PSEUDO", NULL, BLIST_SPARSELUN},
	{"DELL", "PSEUDO DEVICE .", NULL, BLIST_SPARSELUN},	/* Dell PV 530F */
	{"DELL", "PV530F", NULL, BLIST_SPARSELUN},
	{"DELL", "PERCRAID", NULL, BLIST_FORCELUN},
	{"DGC", "RAID", NULL, BLIST_SPARSELUN},	/* Dell PV 650F, storage on LUN 0 */
	{"DGC", "DISK", NULL, BLIST_SPARSELUN},	/* Dell PV 650F, no storage on LUN 0 */
	{"EMC",  "Invista", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
	{"EMC", "SYMMETRIX", NULL, BLIST_SPARSELUN | BLIST_LARGELUN | BLIST_FORCELUN},
	{"EMULEX", "MD21/S2     ESDI", NULL, BLIST_SINGLELUN},
	{"easyRAID", "16P", NULL, BLIST_NOREPORTLUN},
	{"easyRAID", "X6P", NULL, BLIST_NOREPORTLUN},
	{"easyRAID", "F8", NULL, BLIST_NOREPORTLUN},
	{"FSC", "CentricStor", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
	{"Generic", "USB SD Reader", "1.00", BLIST_FORCELUN | BLIST_INQUIRY_36},
	{"Generic", "USB Storage-SMC", "0180", BLIST_FORCELUN | BLIST_INQUIRY_36},
	{"Generic", "USB Storage-SMC", "0207", BLIST_FORCELUN | BLIST_INQUIRY_36},
	{"HITACHI", "DF400", "*", BLIST_REPORTLUN2},
	{"HITACHI", "DF500", "*", BLIST_REPORTLUN2},
	{"HITACHI", "DISK-SUBSYSTEM", "*", BLIST_REPORTLUN2},
	{"HITACHI", "HUS1530", "*", BLIST_NO_DIF},
	{"HITACHI", "OPEN-", "*", BLIST_REPORTLUN2},
	{"HITACHI", "OP-C-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
	{"HITACHI", "3380-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
	{"HITACHI", "3390-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
	{"HITACHI", "6586-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
	{"HITACHI", "6588-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
	{"HP", "A6189A", NULL, BLIST_SPARSELUN | BLIST_LARGELUN},	/* HP VA7400 */
	{"HP", "OPEN-", "*", BLIST_REPORTLUN2}, /* HP XP Arrays */
	{"HP", "NetRAID-4M", NULL, BLIST_FORCELUN},
	{"HP", "HSV100", NULL, BLIST_REPORTLUN2 | BLIST_NOSTARTONADD},
	{"HP", "C1557A", NULL, BLIST_FORCELUN},
	{"HP", "C3323-300", "4269", BLIST_NOTQ},
	{"HP", "C5713A", NULL, BLIST_NOREPORTLUN},
	{"HP", "DF400", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
	{"HP", "DF500", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
	{"HP", "DF600", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
	{"HP", "OP-C-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
	{"HP", "3380-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
	{"HP", "3390-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
	{"HP", "6586-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
	{"HP", "6588-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
	{"IBM", "AuSaV1S2", NULL, BLIST_FORCELUN},
	{"IBM", "ProFibre 4000R", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
	{"IBM", "2105", NULL, BLIST_RETRY_HWERROR},
	{"iomega", "jaz 1GB", "J.86", BLIST_NOTQ | BLIST_NOLUN},
	{"IOMEGA", "ZIP", NULL, BLIST_NOTQ | BLIST_NOLUN},
	{"IOMEGA", "Io20S         *F", NULL, BLIST_KEY},
	{"INSITE", "Floptical   F*8I", NULL, BLIST_KEY},
	{"INSITE", "I325VM", NULL, BLIST_KEY},
	{"Intel", "Multi-Flex", NULL, BLIST_NO_RSOC},
	{"iRiver", "iFP Mass Driver", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
	{"LASOUND", "CDX7405", "3.10", BLIST_MAX5LUN | BLIST_SINGLELUN},
	{"Marvell", "Console", NULL, BLIST_SKIP_VPD_PAGES},
	{"Marvell", "91xx Config", "1.01", BLIST_SKIP_VPD_PAGES},
	{"MATSHITA", "PD-1", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
	{"MATSHITA", "DMC-LC5", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
	{"MATSHITA", "DMC-LC40", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
	{"Medion", "Flash XL  MMC/SD", "2.6D", BLIST_FORCELUN},
	{"MegaRAID", "LD", NULL, BLIST_FORCELUN},
	{"MICROP", "4110", NULL, BLIST_NOTQ},
	{"MSFT", "Virtual HD", NULL, BLIST_NO_RSOC},
	{"MYLEX", "DACARMRB", "*", BLIST_REPORTLUN2},
	{"nCipher", "Fastness Crypto", NULL, BLIST_FORCELUN},
	{"NAKAMICH", "MJ-4.8S", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
	{"NAKAMICH", "MJ-5.16S", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
	{"NEC", "PD-1 ODX654P", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
	{"NEC", "iStorage", NULL, BLIST_REPORTLUN2},
	{"NRC", "MBR-7", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
	{"NRC", "MBR-7.4", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
	{"PIONEER", "CD-ROM DRM-600", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
	{"PIONEER", "CD-ROM DRM-602X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
	{"PIONEER", "CD-ROM DRM-604X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
	{"PIONEER", "CD-ROM DRM-624X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
	{"Promise", "VTrak E610f", NULL, BLIST_SPARSELUN | BLIST_NO_RSOC},
	{"Promise", "", NULL, BLIST_SPARSELUN},
	{"QEMU", "QEMU CD-ROM", NULL, BLIST_SKIP_VPD_PAGES},
	{"QNAP", "iSCSI Storage", NULL, BLIST_MAX_1024},
	{"SYNOLOGY", "iSCSI Storage", NULL, BLIST_MAX_1024},
	{"QUANTUM", "XP34301", "1071", BLIST_NOTQ},
	{"REGAL", "CDC-4X", NULL, BLIST_MAX5LUN | BLIST_SINGLELUN},
	{"SanDisk", "ImageMate CF-SD1", NULL, BLIST_FORCELUN},
	{"SEAGATE", "ST34555N", "0930", BLIST_NOTQ},	/* Chokes on tagged INQUIRY */
	{"SEAGATE", "ST3390N", "9546", BLIST_NOTQ},
	{"SEAGATE", "ST900MM0006", NULL, BLIST_SKIP_VPD_PAGES},
	{"SGI", "RAID3", "*", BLIST_SPARSELUN},
	{"SGI", "RAID5", "*", BLIST_SPARSELUN},
	{"SGI", "TP9100", "*", BLIST_REPORTLUN2},
	{"SGI", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
	{"IBM", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
	{"SUN", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
	{"DELL", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
	{"STK", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
	{"NETAPP", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
	{"LSI", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
	{"ENGENIO", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
	{"SMSC", "USB 2 HS-CF", NULL, BLIST_SPARSELUN | BLIST_INQUIRY_36},
	{"SONY", "CD-ROM CDU-8001", NULL, BLIST_BORKEN},
	{"SONY", "TSL", NULL, BLIST_FORCELUN},		/* DDS3 & DDS4 autoloaders */
	{"ST650211", "CF", NULL, BLIST_RETRY_HWERROR},
	{"SUN", "T300", "*", BLIST_SPARSELUN},
	{"SUN", "T4", "*", BLIST_SPARSELUN},
	{"TEXEL", "CD-ROM", "1.06", BLIST_BORKEN},
	{"Tornado-", "F4", "*", BLIST_NOREPORTLUN},
	{"TOSHIBA", "CDROM", NULL, BLIST_ISROM},
	{"TOSHIBA", "CD-ROM", NULL, BLIST_ISROM},
	{"Traxdata", "CDR4120", NULL, BLIST_NOLUN},	/* locks up */
	{"USB2.0", "SMARTMEDIA/XD", NULL, BLIST_FORCELUN | BLIST_INQUIRY_36},
	{"WangDAT", "Model 2600", "01.7", BLIST_SELECT_NO_ATN},
	{"WangDAT", "Model 3200", "02.2", BLIST_SELECT_NO_ATN},
	{"WangDAT", "Model 1300", "02.4", BLIST_SELECT_NO_ATN},
	{"WDC WD25", "00JB-00FUA0", NULL, BLIST_NOREPORTLUN},
	{"XYRATEX", "RS", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
	{"Zzyzx", "RocketStor 500S", NULL, BLIST_SPARSELUN},
	{"Zzyzx", "RocketStor 2000", NULL, BLIST_SPARSELUN},
	{ NULL, NULL, NULL, 0 },
};


static struct scsi_dev_info_list_table *scsi_devinfo_lookup_by_key(int key) { struct scsi_dev_info_list_table *devinfo_table; int found = 0; list_for_each_entry(devinfo_table, &scsi_dev_info_list, node) if (devinfo_table->key == key) { found = 1; break; } if (!found) return ERR_PTR(-EINVAL); return devinfo_table; }

Contributors

PersonTokensPropCommitsCommitProp
James Bottomley59100.00%1100.00%
Total59100.00%1100.00%

/* * scsi_strcpy_devinfo: called from scsi_dev_info_list_add to copy into * devinfo vendor and model strings. */
static void scsi_strcpy_devinfo(char *name, char *to, size_t to_length, char *from, int compatible) { size_t from_length; from_length = strlen(from); strncpy(to, from, min(to_length, from_length)); if (from_length < to_length) { if (compatible) { /* * NUL terminate the string if it is short. */ to[from_length] = '\0'; } else { /* * space pad the string if it is short. */ strncpy(&to[from_length], spaces, to_length - from_length); } } if (from_length > to_length) printk(KERN_WARNING "%s: %s string '%s' is too long\n", __func__, name, from); }

Contributors

PersonTokensPropCommitsCommitProp
Christoph Hellwig10699.07%150.00%
Harvey Harrison10.93%150.00%
Total107100.00%2100.00%

/** * scsi_dev_info_list_add - add one dev_info list entry. * @compatible: if true, null terminate short strings. Otherwise space pad. * @vendor: vendor string * @model: model (product) string * @strflags: integer string * @flags: if strflags NULL, use this flag value * * Description: * Create and add one dev_info entry for @vendor, @model, @strflags or * @flag. If @compatible, add to the tail of the list, do not space * pad, and set devinfo->compatible. The scsi_static_device_list entries * are added with @compatible 1 and @clfags NULL. * * Returns: 0 OK, -error on failure. **/
static int scsi_dev_info_list_add(int compatible, char *vendor, char *model, char *strflags, int flags) { return scsi_dev_info_list_add_keyed(compatible, vendor, model, strflags, flags, SCSI_DEVINFO_GLOBAL); }

Contributors

PersonTokensPropCommitsCommitProp
Christoph Hellwig2357.50%150.00%
James Bottomley1742.50%150.00%
Total40100.00%2100.00%

/** * scsi_dev_info_list_add_keyed - add one dev_info list entry. * @compatible: if true, null terminate short strings. Otherwise space pad. * @vendor: vendor string * @model: model (product) string * @strflags: integer string * @flags: if strflags NULL, use this flag value * @key: specify list to use * * Description: * Create and add one dev_info entry for @vendor, @model, * @strflags or @flag in list specified by @key. If @compatible, * add to the tail of the list, do not space pad, and set * devinfo->compatible. The scsi_static_device_list entries are * added with @compatible 1 and @clfags NULL. * * Returns: 0 OK, -error on failure. **/
int scsi_dev_info_list_add_keyed(int compatible, char *vendor, char *model, char *strflags, int flags, int key) { struct scsi_dev_info_list *devinfo; struct scsi_dev_info_list_table *devinfo_table = scsi_devinfo_lookup_by_key(key); if (IS_ERR(devinfo_table)) return PTR_ERR(devinfo_table); devinfo = kmalloc(sizeof(*devinfo), GFP_KERNEL); if (!devinfo) { printk(KERN_ERR "%s: no memory\n", __func__); return -ENOMEM; } scsi_strcpy_devinfo("vendor", devinfo->vendor, sizeof(devinfo->vendor), vendor, compatible); scsi_strcpy_devinfo("model", devinfo->model, sizeof(devinfo->model), model, compatible); if (strflags) devinfo->flags = simple_strtoul(strflags, NULL, 0); else devinfo->flags = flags; devinfo->compatible = compatible; if (compatible) list_add_tail(&devinfo->dev_info_list, &devinfo_table->scsi_dev_info_list); else list_add(&devinfo->dev_info_list, &devinfo_table->scsi_dev_info_list); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Christoph Hellwig13772.11%133.33%
James Bottomley5227.37%133.33%
Harvey Harrison10.53%133.33%
Total190100.00%3100.00%

EXPORT_SYMBOL(scsi_dev_info_list_add_keyed); /** * scsi_dev_info_list_find - find a matching dev_info list entry. * @vendor: vendor string * @model: model (product) string * @key: specify list to use * * Description: * Finds the first dev_info entry matching @vendor, @model * in list specified by @key. * * Returns: pointer to matching entry, or ERR_PTR on failure. **/
static struct scsi_dev_info_list *scsi_dev_info_list_find(const char *vendor, const char *model, int key) { struct scsi_dev_info_list *devinfo; struct scsi_dev_info_list_table *devinfo_table = scsi_devinfo_lookup_by_key(key); size_t vmax, mmax; const char *vskip, *mskip; if (IS_ERR(devinfo_table)) return (struct scsi_dev_info_list *) devinfo_table; /* Prepare for "compatible" matches */ /* * XXX why skip leading spaces? If an odd INQUIRY * value, that should have been part of the * scsi_static_device_list[] entry, such as " FOO" * rather than "FOO". Since this code is already * here, and we don't know what device it is * trying to work with, leave it as-is. */ vmax = sizeof(devinfo->vendor); vskip = vendor; while (vmax > 0 && *vskip == ' ') { vmax--; vskip++; } /* Also skip trailing spaces */ while (vmax > 0 && vskip[vmax - 1] == ' ') --vmax; mmax = sizeof(devinfo->model); mskip = model; while (mmax > 0 && *mskip == ' ') { mmax--; mskip++; } while (mmax > 0 && mskip[mmax - 1] == ' ') --mmax; list_for_each_entry(devinfo, &devinfo_table->scsi_dev_info_list, dev_info_list) { if (devinfo->compatible) { /* * Behave like the older version of get_device_flags. */ if (memcmp(devinfo->vendor, vskip, vmax) || (vmax < sizeof(devinfo->vendor) && devinfo->vendor[vmax])) continue; if (memcmp(devinfo->model, mskip, mmax) || (mmax < sizeof(devinfo->model) && devinfo->model[mmax])) continue; return devinfo; } else { if (!memcmp(devinfo->vendor, vendor, sizeof(devinfo->vendor)) && !memcmp(devinfo->model, model, sizeof(devinfo->model))) return devinfo; } } return ERR_PTR(-ENOENT); }

Contributors

PersonTokensPropCommitsCommitProp
Alan Stern17357.28%375.00%
Peter Jones12942.72%125.00%
Total302100.00%4100.00%

/** * scsi_dev_info_list_del_keyed - remove one dev_info list entry. * @vendor: vendor string * @model: model (product) string * @key: specify list to use * * Description: * Remove and destroy one dev_info entry for @vendor, @model * in list specified by @key. * * Returns: 0 OK, -error on failure. **/
int scsi_dev_info_list_del_keyed(char *vendor, char *model, int key) { struct scsi_dev_info_list *found; found = scsi_dev_info_list_find(vendor, model, key); if (IS_ERR(found)) return PTR_ERR(found); list_del(&found->dev_info_list); kfree(found); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Alan Stern3659.02%150.00%
Peter Jones2540.98%150.00%
Total61100.00%2100.00%

EXPORT_SYMBOL(scsi_dev_info_list_del_keyed); /** * scsi_dev_info_list_add_str - parse dev_list and add to the scsi_dev_info_list. * @dev_list: string of device flags to add * * Description: * Parse dev_list, and add entries to the scsi_dev_info_list. * dev_list is of the form "vendor:product:flag,vendor:product:flag". * dev_list is modified via strsep. Can be called for command line * addition, for proc or mabye a sysfs interface. * * Returns: 0 if OK, -error on failure. **/
static int scsi_dev_info_list_add_str(char *dev_list) { char *vendor, *model, *